Web Tools Weekly - One email per week with the best front-end web tools
Email Tuna - Explore newsletters without subscribing
Newsletter.ist - Discover latest newsletters
Discover by Revue - A directory of personal newsletters
Spoke - Spoke combines blended and collaborative learning with real-world gamification and integrated communication tools into a modern, social learning management system that gets used 4X more than other leading platforms.
Nuzzel's Network of Newsletters - Easiest and fastest way to curate an email newsletter